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Asustor AS6404T 4-bay NAS Review

Rating: 8.5.

Sitting under Asustor's Power User to Business banner, the AS6404T 4-bay NAS is powered by an Intel Apollo Lake Celeron processor backed by 8GB of dual-channel memory and supports both USB 3.0 Type -C and HDMI 2.0 ports.

Powered by an Intel Celeron J3455 1.5GHz (burst up 2.3GHz) processor, the Asustor AS6404T comes with 8GB of DDR3L 1866MHz dual -channel memory (2 x 4GB modules in the two SO-DIMM slots).  Asustor quote performance figures of 219MB/s and 221MB/s for reads and writes respectively for the AS6404T in a RAID 5 array, but that is with both LAN ports in Link Aggregation mode. With a single Gigabit connection the performance is quoted at 104MB/s for reads and 110MB/s for writes.

It has both a dedicated hardware AES 256-bit encryption engine, which will appeal to small business because of the data protection it offers and a hardware transcoding engine, which will be more useful to the home user. The transcoding engine supports H.264 (AVC), H.265 (HEVC), MPEG-2, VC-1 and VP9 up to 1080p.


  • Intel 1.5GHz quad-core processor.
  • Built in AES-NI hardware encryption engine.
  • 8GB DDR3L memory.
  • Dual Gigabit LAN.
  • 3-year warranty.

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